Sources and Solutions: Stormwater Rain and snow flow over streets, parking lots, and roofs collecting excess nutrients and pollutants before entering into a storm drain or water body. Because stormwater flows over hard surfaces directly into storm drain, there is no opportunity for soil and plants or a water treatment facility to filter out pollutants.

A pollution permit or a treatment plant can't solve stormwater pollution, because stormwater runoff comes from small, individual sources in all parts of the watershed. It is a problem that everyone plays a part in solving.

There are three main types of stormwater pollution: litter — for example, cigarette butts, cans, food wrappers, plastic bags or paper ‘natural’ pollution — for example, leaves, garden clippings or animal faeces ; chemical pollution — for example, fertilisers, oil or detergents.

This is known as stormwater pollution. Polluted stormwater degrades our lakes, rivers, wetlands and other waterways. Nutrients such as phosphorus and nitrogen can cause the overgrowth of algae resulting in oxygen depletion in waterways.

Stormwater pollution Types of stormwater pollution. There are four main types of stormwater pollution: litter, such as cigarette butts, cans, paper or plastic bags

THE CAUSES OF URBAN STORMWATER POLLUTION Some Things To Think About Runoff pollution occurs every time rain or snowmelt flows across the ground and picks up contaminants.

Sometimes the pollution is something you can see, like trash floating on top of the water. Other times you can’t see the pollution at all, like when motor oil from a car washes into a nearby creek. Polluted runoff is the number one cause of water pollution in the United States, and North Carolina is no exception.

Stormwater is a leading cause fo water pollution. It runs off solid surfaces. and collects pollutants such as oil, pesticides, sediments, bacteria, and. other chemicals, and then deposits them into our waterways.

In developed environments, unmanaged stormwater can create two major issues: one related to the volume and timing of runoff water and the other related to potential contaminants that the water is carrying (water pollution).

NRDC works to encourage the adoption of green infrastructure in . cities to control stormwater pollution, . Invest in Water Efficiency and Green Infrastructure.

Storm water runoff is one of the leading causes of pollution in our surface waters. In fields and forests, most rain is absorbed by the soil or is taken up by plants and trees. Rainwater that flows overland is called storm water runoff.